Chalc Documentation

Chalc is a Python package for computing the persistent homology of chromatic alpha complexes of coloured point clouds in Euclidean space. Chalc is written in C++ and relies on the Computational Geometry Algorithms Library (CGAL) for fast and accurate geometric computations, and Phimaker for persistent homology calculations.

Documentation index

• Theory
  • References
• Installation
  • Using pip
  • Build from source
• Example Usage
• API Reference
  • chromatic
  • filtration
  • sixpack
  • plotting

See Also

The Python package chromatic-tda (written by the original authors of [1]) provides similar functionality, but is currently limited to points in two dimensions with upto three colours.